In the Anglican Church, the Collect for the Sunday before Advent, or the twenty-fifth Sunday after Trinity, which occurs some time in late November, commences ‘Stir up, we beseech thee, O Lord, the wills of thy faithful people’, and all over the country this has given the day the colloquial name of Stir-Up Sunday. Brand reports a verse recited by children: ‘Stir up, we beseech thee, The pudding in the pot, And when we get home, We'll eat it all hot’. The day was taken as a marker to advise the housewife to start her Christmas preparations, and the grocer to see to the Christmas stock of his shop (Sussex Archaeological Collections 33 (1883), 252–3).
Brand, 1849: i. 414;Simpson, 1973: 141–2;‘Winter and the London Poor’, The Times (25 Nov. 1863), 12.